Lec_21_Xmsn_Gate_RSFF_07

Lec_21_Xmsn_Gate_RSFF_07 - ESE319 Introduction to...

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Unformatted text preview: ESE319 Introduction to Microelectronics 1 © 2006 Philip V. Lopresti (update 07Nov07 KRL) CMOS Transmission Gates ESE319 Introduction to Microelectronics 2 © 2006 Philip V. Lopresti (update 07Nov07 KRL) Non-negligible Body Effect NMOS Devices Body and source connected to most negative voltage, i.e. V SB = 0 . Body effect is negligible. Only body connected to most negative voltage i.e. V SB ≠ . Body effect is non-negligible. PMOS Devices Body and source connected to most positive voltage i.e. V SB = 0 . Body effect is negligible. Only body connected to most positive voltage i.e. V SB ≠ . Body effect is ESE319 Introduction to Microelectronics 2 © 2006 Philip V. Lopresti (update 07Nov07 KRL) Non-negligible Body Effect NMOS Devices Body and source connected to most negative voltage, i.e. V SB = 0 . Body effect is negligible. Only body connected to most negative voltage i.e. V SB ≠ . Body effect is non-negligible. PMOS Devices Body and source connected to most positive voltage i.e. V SB = 0 . Body effect is negligible. Only body connected to most positive voltage i.e. V SB ≠ . Body effect is non-negligible. ESE319 Introduction to Microelectronics 3 © 2006 Philip V. Lopresti (update 07Nov07 KRL) Non-negligible Body Effect When V SB ≠ causes the electric field in the vicinity of the channel to change. (See S&S p 258.) The channel depth ischannel to change....
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Lec_21_Xmsn_Gate_RSFF_07 - ESE319 Introduction to...

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